Trolley-ear



No. 620,907. Patented Mar. I94, I899.

H. GEISENHUNER.

TBOLLEY EAR.

(Application filed Aug. 5, 1895.)

(No Model.)

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HENRY GEISENHONER, OF SOHENEOTADY, NEW YORK, ASSIGNOR TO THE GENERAL ELECTRIC COMPANY, OF NEIV YORK.

TROLLEY-EAR.

SPECIFICATION forming part of Letters Patent No. 620,907, dated March 14, 1899.

Application filed Augu t 5, 1898. Serial No- 687,80'7- (N0 model.)

To all whom it may concern:

Be it known that I, HENRY GEfsENHoNER, a citizenflof the :United States, residing at Schenectady, county of Schenectady, State of New York, have invented certain new and useful Improvements in Trolley-Ears, (Case No. 871,) of which the following is a specification.

My present invention relates to means for securing in place the trolley-wire of an overhead system, and has for its object to provide a simple and cheap device which may be readily applied and as readily taken down, if necessary. For this purpose I provide a trolley-wire having a spiral groove cut in it, within which a small fastening-wire may be seated. This groove may be and preferably is formed in the wire in the course of manufacture .and preferably throughout its entire length. It is manifest, however, that it may be, if desired, formed on the wire at the time of erection and only at such points as are to be fastened to the supports. With such a wire I employ a trolley-ear of special construction having lugs to which the fasteningwire may be secured and of course having a groove within which the trolley-Wire will be seated. With this construction I get an absolutely straight underrun, the advantages of which are apparent, and at the same time a secure fastening.

In the accompanying drawings,which show an embodiment of the invention, Figure 1 shows the device in perspective,with the trolley-wire secured in place; and Fig. 2is a Vertical section, through the stud, of the part shown in Fig. 1.

A is the trolley-ear, and A is a boss or lug arranged so that it may be readily fastened to the usual insulating-stud. A is an openin gthrough the web of the trolley-ear. Within the opening are two lugs aaand upon the outer ends of the ear are other lugs a a. Grooves a in the sides of the ear lead to these lugs. The trolley-wire is lettered B, and the spiral groove in it is shown at b.

In application the ear is first secured to its support, which is not illustrated. The trolley-wire is then brought up to it and seated in the channel on the lower face, and then ing-wire 0, being under tension,will draw the trolley-wire tightly against the ear, and a strong and secure joint will be made. It is manifest, however, that the wire may be readily cut and removed, when the trolleywire will drop out of place.

It will be evident that the form of the ear and groove may be greatly varied without departing from the spirit of my invention.

What I claim as new, and desire tosecure by Letters Patent of the United States, is-

1. The combination of a trolley-wire having grooves, a trolley-ear having lugs, and a wire laid in the grooves and passing around the lugs to secure the ear and trolley-wire together.

2. As a new article of manufacture, a trolley-ear having lugs for holding a wire for securing the trolley-wire in place.

3. A trolley-ear provided with a groove for the trolley-wire, and lugs and grooves for the fastening-wire.

4. As a new article of manufacture, a trolley-ear having the lugs a, a and the grooves a 5. The combination with a grooved trolleywire of an ear fitting the wire, and a fastening-wire sunk in the groove and secured to the ear.

In testimony whereof I have hereunto set my hand this 2d day of August, 1898.

HENRY GEISENHONER.

Witnesses:

B. B. HULL, M. H. EMERSON. 

